Tesla Charge Time Calculator
Find out exactly how long it takes to charge your Tesla on any charger — and how much charge you need for your daily driving.
Charge Time Calculator
How long to charge from one percentage to another?
Your Tesla
sets the onboard charger limit & battery sizeCharger
Charge window
Estimated charge time
6 hr 55 min
Energy added
45.0 kWh
Estimated cost
£14.32
Charging at 7.4 kW AC · wall-to-battery ≈88% efficient. Based on a 75 kWh pack — select your Tesla for exact figures.
Daily Charging Needs
How long do you need to plug in each day for your typical driving?
Daily distance
AC vs DC charging
AC (home/destination) chargers go through your car's onboard converter, which limits speed. DC fast chargers bypass this and charge the battery directly at much higher rates.
Charging losses
Not all electricity from the wall reaches the battery. AC charging is typically 85–90% efficient; DC fast charging 92–95%. Costs above include these losses.
Why 80% is the sweet spot
Tesla recommends charging to 80% daily. Above 80%, the charge rate slows significantly to protect the battery — the last 20% takes almost as long as 0–80%.
Figures are based on owner-reported specs and publicly available data — not official Tesla figures.
How long Tesla charging takes
Charge time comes down to two things: how much energy you need to add, and how fast the charger can deliver it. The energy is the gap between your current and target charge as a share of the pack's usable capacity — going from 20% to 80% on a 75 kWh battery means adding about 45 kWh. The time is roughly that energy divided by the charging power, so the same 45 kWh that takes six hours on a 7kW home charger takes well under an hour on a rapid charger. The calculator above does this for your exact model and charger, including the way fast charging slows as the battery fills.
AC charging is limited by the car, not the wall
This is the detail that trips most people up. On AC charging — your home Wall Connector and the majority of public Type 2 chargers — the speed is capped by your Tesla's onboard charger, which converts AC to DC for the battery. Most Model 3 and Model Y cars max out around 11kW on AC, so a 22kW public charger won't charge them any faster than an 11kW one. DC rapid chargers and Superchargers skip the onboard charger entirely and feed the battery directly, which is why their numbers are in a different league.
| Charger | Power | Best for |
|---|---|---|
| 3-pin socket | ~3 kW | Emergency top-ups only |
| Home Wall Connector | 7 kW | Overnight home charging |
| Three-phase AC | 11–22 kW | Faster AC (if the car supports it) |
| CCS rapid | 50–150 kW | Quick stops on the road |
| Supercharger V3 / V4 | up to 250 kW | Fastest long-distance charging |
Why fast charging slows past 80%
On a DC rapid charger the battery doesn't hold its peak power the whole time — it tapers down as it fills, to keep the cells healthy. A charge might start at 150–250kW when the pack is nearly empty and drop to a fraction of that by the time it's near full, so the last 20% can take as long as the first 60%. That's why charge speeds are quoted over a 10–80% window, and why on a long trip it's usually faster to stop more often for shorter charges than to sit and wait for 100% — something the route planner takes into account automatically.
What affects real-world charge time
- Battery temperature: a cold pack charges slowly until it warms; preconditioning on the way to a Supercharger fixes this.
- Starting percentage: charging is fastest when the battery is low, so arriving with 10–20% gets the best rapid-charging speeds.
- A shared Supercharger stall: older V2 sites split power between paired stalls, which can slow you down when it's busy.
- Battery health: a degraded pack holds less energy, so it reaches your target percentage a little sooner — but with fewer miles added.